Home / 78,546.04-108,396.48-45,018.52

Finding the Fourth Proportional to 78,546.04, 108,396.48 and 45,018.52

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Solution

The fourth proportional to 78,546.04, 108,396.48 and 45,018.52 is: 62,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.04 : 108,396.48 = 45,018.52 : x
  2. Step 2: Convert to fraction form
    78,546.04/108,396.48 = 45,018.52/x
  3. Step 3: Cross multiply
    78,546.04x = 108,396.48 × 45,018.52
  4. Step 4: Simplify right side
    78,546.04x = 4,879,849,102.81
  5. Step 5: Solve for x
    x = 4,879,849,102.81/78,546.04
  6. Step 6: Final answer
    x = 62,127.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.